package MapAndSet.HashBucket;

import java.util.Objects;

class Person {
    public String id;
    public Person(String id) {
        this.id = id; 
    }

    @Override
    public boolean equals(Object o) {
        if (o == null || getClass() != o.getClass()) return false;
        Person person = (Person) o;
        return Objects.equals(id, person.id);
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(id);
    }
}

public class HashBucket2<K,V> {
    static class Node<K,V> {
        public K key;
        public V value;
        public Node<K,V> next;

        public Node( K key,V val) {
            this.value = val;
            this.key = key;
        }
    }
    public Node<K,V>[] array;
    public int usedSize;

    public HashBucket2() {
        array = (Node<K,V>[])new Node[10];
    }

    public void put(K key,V value){
        int hash = key.hashCode();
        int index = hash % array.length;
        Node<K,V> cur = array[index];
        while(cur!=null){
            if(cur.key.equals(key)){
                cur.value = value;
                return;
            }
            cur = cur.next;
        }
        Node<K,V> node = new Node<>(key,value);
        node.next = array[index];
        array[index] = node;
        usedSize++;
    }

    public V get(K key) {
        int hash = key.hashCode();
        int index = hash % array.length;
        Node<K,V> cur = array[index];
        while(cur!=null){
            if(cur.key.equals(key)) {
                return cur.value;
            }
            cur = cur.next;
        }
        return null;
    }


}
